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Finding the Fourth Proportional to 382,670.80, 574,224.90 and 146,183.20

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Solution

The fourth proportional to 382,670.80, 574,224.90 and 146,183.20 is: 219,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,670.80 : 574,224.90 = 146,183.20 : x
  2. Step 2: Convert to fraction form
    382,670.80/574,224.90 = 146,183.20/x
  3. Step 3: Cross multiply
    382,670.80x = 574,224.90 × 146,183.20
  4. Step 4: Simplify right side
    382,670.80x = 83,942,033,401.68
  5. Step 5: Solve for x
    x = 83,942,033,401.68/382,670.80
  6. Step 6: Final answer
    x = 219,358.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.